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55749956 = 2289156601
BaseRepresentation
bin1101010010101…
…0110101000100
310212220101120012
43110222311010
5103232444311
65310525352
71244603213
oct324526504
9125811505
1055749956
1129518849
1216806858
13b71c652
14759307a
154d6378b
hex352ad44

55749956 has 12 divisors (see below), whose sum is σ = 98659260. Its totient is φ = 27561600.

The previous prime is 55749937. The next prime is 55750033. The reversal of 55749956 is 65994755.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 36966400 + 18783556 = 6080^2 + 4334^2 .

It is a super-3 number, since 3×557499563 (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77945 + ... + 78656.

It is an arithmetic number, because the mean of its divisors is an integer number (8221605).

Almost surely, 255749956 is an apocalyptic number.

It is an amenable number.

55749956 is a deficient number, since it is larger than the sum of its proper divisors (42909304).

55749956 is a wasteful number, since it uses less digits than its factorization.

55749956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156694 (or 156692 counting only the distinct ones).

The product of its digits is 1701000, while the sum is 50.

The square root of 55749956 is about 7466.5893150755. The cubic root of 55749956 is about 382.0159619802.

The spelling of 55749956 in words is "fifty-five million, seven hundred forty-nine thousand, nine hundred fifty-six".

Divisors: 1 2 4 89 178 356 156601 313202 626404 13937489 27874978 55749956